154 HENRY ALLAN GLEASON 



TABLE 1 



Virgin heech-maple forest, 1915. Frequency indices for secondary species only 



Acer saccharum seedlings 92 Clintonia borealis 7 



Fagus grandifolia seedlings 74 Streptopus longipes 5 



Maianthemum canadense 46 Trientalis americana 4 



Smilacina racemosa 37 Galium triflorum 3 



Acer pennsylvanicum 28 Medeola virginiana 3 



Polygonatum hiflorum 22 Sambucus racemosa 3 



Streptopus roseus 18 Actaea alba 1 



Aspidium spinulosum 12 Rubus idaeus, var. aculeatissimus . . . 1 



Aralia nudicaulis 8 



Present in the immediate vicinity, but not in the quadrats counted: Aralia 

 racemosa, Circaea utetiana, Dirca pahistris, Epifagus virginiana, Epilobium an- 

 guslifolmm, Hieracium venosum, Mitchella repens, Monotropa ^miflora, Ostrya vir- 

 giniana seedlings, Pyrola elliptica, Trillium grandiflorum, Tsuga canadensis seed- 

 lings, Ulmus fulva seedlings. 



TABLE 2 

 Clearing vegetation, first year, 1915 



Acer pennsylvanicum 18 Fagus grandifolia seedlings 3 



Maianthemum canadense 6 Trillium grandiflorum 2 



Sambucus racemosa 5 Chenopodium capilatum 1 



Rubus idaeus, var. aculeatissimus.. 5 Lactuca canadenis 1 



Acer saccharum seedlings 4 Smilacina racemosa 1 



Present in the vicinity, but not in the quadrats counted: Anaphalis margari- 

 tacea, Epilobium, angustifolium, Erechtites hieracifolia, Mitchella repens, Poly- 

 gonatum biflorum, Trientalis americana. 



TABLE 3 

 Clearing vegetation, third year, 1917 



Sambucus racemosa 86 Anaphalis margaritacea 8 



Rubus idaeus, var. aculeatissimus . . 64 Fagus grandifolia seedlings 7 



Acer pennsylvanicum 57 Pteris aquilina 7 



Acer saccharum seedlings 56 Gnaphalium decurrens 5 



Epilobium angustifolium 35 



Present in the vicinity, but not in the quadrats counted: Betula alba, var. 

 papyrifera, Epilobium adenocaulon, Erigeron canadensis, Maianthemum canadense, 

 Populus grandidentata, Populus tremuloides, Smilacina racemosa. 



TABLE 4 



Clearing vegetation, at least eight years old, 1917 



Acer saccharum 100 Trillium grandiflorum 3 



Acer pennsylvanicum 11 Clintonia borealis 2 



Maianthemun canadense 6 Mitchella repens 1 



Fagus grandifolia 5 



Numerous other species occur widely scattered through the area. 



